#pragma once
#include <functional>
class Task
{
    using func_t = std::function<int(int, int)>;

public:
    Task()
    {
    }
    Task(int x, int y, func_t func)
        : _x(x), _y(y), _callback(func)
    {
    }
    int operator()()
    {
        int result = _callback(_x, _y);
        return result;
    }

private:
    int _x;
    int _y;
    func_t _callback;
};